INSULCAST 140 FR
Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other
Main features
- Epoxy Casting with Insulcure 11B
- 50,000 cP Mixed Viscosity
- 2.3 W/(m K) Thermal Encapsulation
Product Description
INSULCAST® 140 FR with INSULCURE® 11B is a black, two-component epoxy casting and encapsulation system formulated for high thermal conductivity and Class F operating properties. The resin is combined with INSULCURE 11B at a published ratio of 100:3 to 4 by weight and has a typical mixed viscosity of 50,000 cP. The system is documented for electrical insulation and heat transfer in demanding electronic assemblies. Typical cured properties include Shore D 90 to 95 hardness, 2.3 W/m·K thermal conductivity, 420 V/mil dielectric strength, and service from -55°C to 155°C.
Key features
- High thermal conductivity: Typical cured thermal conductivity is 2.3 W/m·K.
- Class F operating properties: The system is documented for elevated-temperature electrical encapsulation.
- Rigid electrical insulation: Typical cured data include Shore D 90 to 95 hardness and 420 V/mil dielectric strength.
Applications / Suitable for
- Thermally conductive electrical casting
- Electronic potting and encapsulation
- Assemblies requiring Class F operating properties
TDS, SDS & Technical Documents
Technical Specifications
No specifications available.
Additional Information
As-supplied / before-processing properties
Typical as-supplied or processing-state values unless otherwise stated. These values are not sales specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Color | Black | N/A | Mixed system |
| Mix ratio | 100:3 to 4 | parts by weight | INSULCAST 140 FR : INSULCURE 11B |
| Mixed viscosity | 50,000 | cP | Typical |
| Pot life | 150 | min | At 25°C |
| Reference cure | 2 | h | At 120°C |
After-processing / final-state properties
Typical cured or final-state values under the stated system and test conditions. These values are not sales specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Hardness | 90 to 95 | Shore D | Typical cured value |
| Thermal conductivity | 2.3 | W/m·K | Typical cured value |
| Dielectric constant | 6.3 | N/A | At 1 kHz |
| Dielectric strength | 420 | V/mil | Typical cured value |
| Volume resistivity | 1 × 10¹⁵ | ohm·cm | Typical cured value |
| Coefficient of thermal expansion | 26 × 10⁻⁶ | 1/°C | Typical cured value |
| Service temperature | -55 to 155 | °C | Documented range |
| Flammability classification | V-1 | UL 94 | Published portfolio classification |
